Power type relay

Abstract

The utility model discloses a power type relay, which belongs to the technical field of relays and solves the problem that the contact control capacity of a traditional relay is small and the requirement is difficult to meet. A first main loop, a second main loop, a third main loop and a fourth main loop are sequentially arranged in the relay body, so that incoming line contacts of the first main loop, the second main loop, the third main loop and the fourth main loop are connected in series, and outgoing line contacts of the first main loop and the second main loop are connected in parallel; the wire outlet contacts of the third main loop and the fourth main loop are connected in parallel, so that the four groups of main loops form a group of main loops controlled by the wire inlet end and the wire outlet end; and a control loop wire inlet end and a control loop wire outlet end are also arranged in the relay body. According to the utility model, under the condition that the product volume is not increased, the bearing capacity and the breaking capacity of the relay can be improved, and the relay can be normally used under the action of higher load.

Description

TECHNICAL FIELD

[0001] The utility model belongs to relay technology field, concretely relates to a power type relay. BACKGROUND

[0002] The relay controls the on-off of small current, realizes the control to the large current circuit, has the function of isolation, conversion and protection circuit. However, along with the unceasing enhancement of application demand, the contact control capacity of traditional relay has been difficult to satisfy the demand of certain special occasion. Therefore, how to increase the contact control capacity of relay has important significance to improve the stability and reliability of electrical system. SUMMARY

[0003] The utility model discloses a power type relay to solve the problem that the contact control capacity of traditional relay is small and difficult to satisfy the demand.

[0004] The utility model discloses a power type relay, including the relay body, be equipped with two first connecting line rows and a second connecting line row in the relay body, and the first connecting line row is equipped with two wire holes, and the second connecting line row is equipped with four wire holes;The first main circuit, the second main circuit, the third main circuit and the fourth main circuit are successively equipped with four groups of main circuits in the relay body, and the wire inlet contact of four groups of main circuits is connected with the wire hole of the second connecting line row respectively, makes the wire inlet contact of the first main circuit, the second main circuit, the third main circuit and the fourth main circuit in series connection;The wire outlet contact of the first main circuit, the second main circuit is connected with the wire hole of one first connecting line row, makes the wire outlet contact of the first main circuit and the second main circuit in parallel connection;The wire outlet contact of the third main circuit, the fourth main circuit is connected with the wire hole of another second connecting line row, makes the wire outlet contact of the third main circuit and the fourth main circuit in parallel connection, makes four groups of main circuits constitute a group of main circuits controlled by the wire inlet end and the wire outlet end;The relay body is equipped with control circuit wire inlet end and control circuit wire outlet end still.

[0005] As the further improvement of the utility model, the first connecting line row and the second connecting line row are insulated and coated on the non-wire hole surface.

[0006] As the further improvement of the utility model, the relay body is equipped with the protective cover outside.

[0007] The utility model discloses beneficial effects as follows: the utility model discloses can be applicable under alternating voltage or direct current voltage, through three different connecting wire row and four loop series connection, parallel connection's connection form, change the contact point breakpoint form of power type relay from double breakpoint to eight breakpoint, apply insulation coating technology processing connecting wire row simultaneously, can reach 1kW in the condition of not increasing product volume, the control capacity of single contact point, improve the carrying capacity and breaking capacity of relay, make the utility model discloses can be normally used under higher load effect.

[0008] The utility model still has small, light, compact structure simple and so on, add connecting wire row and do not influence the volume of product, installation size and appearance size. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the front view schematic drawing of the utility model;

[0010] Figure 2 It is the first connecting wire row structure schematic drawing;

[0011] Figure 3 It is the second connecting wire row structure schematic drawing;

[0012] Figure 4 It is the utility model wiring principle diagram.

[0013] In the drawing: 1-relay body; 2-first connecting wire row; 3-second connecting wire row; 4-protective cover; 5-wire inlet end; 6-wire outlet end; 7-control loop wire inlet end; 8-control loop wire outlet end; 9-first main loop; 10-second main loop; 11-third main loop; 12-fourth main loop; 13-wiring hole. DETAILED DESCRIPTION

[0014] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0015] For example, Figures 1-3As shown in the figure, a power type relay comprises a relay body, two first connection line rows 2 and one second connection line row 3 are arranged in the relay body 1, the first connection line row 2 is provided with two wire holes 13, and the second connection line row 3 is provided with four wire holes 13; four main circuits, i.e. a first main circuit 9, a second main circuit 10, a third main circuit 11 and a fourth main circuit 12, are sequentially arranged in the relay body 1, the line-in contacts of the four main circuits are respectively connected with the wire holes 13 of the second connection line row 3, so that the line-in contacts of the first main circuit 9, the second main circuit 10, the third main circuit 11 and the fourth main circuit 12 are connected in series; the line-out contacts of the first main circuit 9 and the second main circuit 10 are connected with the wire holes 13 of one of the first connection line rows 2, so that the line-out contacts of the first main circuit 9 and the second main circuit 10 are connected in parallel; the line-out contacts of the third main circuit 11 and the fourth main circuit 12 are connected with the wire holes 13 of the other first connection line row 3, so that the line-out contacts of the third main circuit 11 and the fourth main circuit 12 are connected in parallel; through the assembly of the above three connection line rows, the four main circuits form a main circuit group controlled by a line-in end 5 and a line-out end 6; the relay body 1 is further provided with a control circuit line-in end 7 and a control circuit line-out end 8.

[0016] The non-wire hole surfaces of the first connection line row 2 and the second connection line row 3 are subjected to insulation coating treatment, so as to improve the insulation performance of the power type relay.

[0017] The relay body 1 is provided with a protective cover 4 on the outside.

[0018] The four main circuits in the relay are connected as a group, i.e. a main circuit group composed of the line-in end 5 and the line-out end 6, and the control circuit remains unchanged, and the wiring form is as shown in the figure Figure 4 As shown in the figure, the control circuit A1+ and A2- correspond to the control circuit line-in end 7 and the control circuit line-out end 8 respectively, and are all control circuits of the relay body 1; two NOs in the figure are a main circuit group, and correspond to the line-in end 5 and the line-out end 6 respectively, the main circuit group is connected by the connection line rows subjected to insulation coating treatment, the main circuit group composed of the four main circuits of the relay is changed from the traditional double-breakpoint to eight-breakpoint, so as to improve the carrying capacity of the contact, and the control capacity of the contact can reach 1kW.

[0019] In assembling, the wire hole 13 of the second connecting wire row 3 is aligned with the relay body incoming line end contact screw hole, and then is fastened in place by a screw, so that the incoming line contacts of the first main circuit 9, the second main circuit 10, the third main circuit 11 and the fourth main circuit 12 are connected in series; the wire holes 13 of the two first connecting wire rows 2 are aligned with the relay body outgoing line contact screw holes, and then are fastened in place by screws, so that the first main circuit 9 and the second main circuit 10 are connected in parallel, the third main circuit 11 and the fourth main circuit 12 are connected in parallel, and the four main circuits of the relay are changed from the traditional double-break to eight-break, so as to improve the carrying capacity and breaking capacity of the relay, and make the relay can be normally used under a higher load.

[0020] The double-break is that a group of main circuits has two independent contacts in a common relay, the four main circuits are changed to one group by series and parallel connection in the utility model, but the number of contacts is not changed, that is, the group of main circuits has eight contacts in the utility model. The contact break form is changed from double-break to eight-break in the utility model, the carrying capacity and breaking capacity of the relay are improved, and the utility model can be normally used under a higher load.

[0021] The non-wire hole surfaces of the first connecting wire row 2 and the second connecting wire row 3 are treated by insulation coating technology to improve the insulation performance of the power relay. The insulation coating operation process of the connecting wire row in the utility model is as follows: the plane where the wire hole 13 of the first connecting wire row 2 and the second connecting wire row 3 is tightly wrapped with a polyamide film, the wrapped connecting wire row is heated at a specific temperature for a certain time, the first connecting wire row 2 and the second connecting wire row 3 are immersed in the powder barrel for 2-3 times, the powder is melted and attached to the surface of the connecting wire row, and then the polyamide film on the immersed first connecting wire row 2 and second connecting wire row 3 is removed, and the first connecting wire row 2 and the second connecting wire row 3 are taken out after being baked at a specific temperature for a certain time.

[0022] The utility model can be applied to alternating current and direct current, the first connecting wire row 2 and the second connecting wire row 3 are assembled, and the protective cover 4 is assembled to protect the product, and the first connecting wire row 2 and the second connecting wire row 3 do not affect the size, installation size and appearance size of the relay.

Claims

1. A power type relay comprising a relay body, characterized by: The relay body (1) is provided with two first connection line rows (2) and one second connection line row (3), the first connection line row (2) is provided with two wire holes (13), the second connection line row (3) is provided with four wire holes (13); the relay body (1) is sequentially provided with four groups of main circuits, i.e. a first main circuit (9), a second main circuit (10), a third main circuit (11) and a fourth main circuit (12), the line-in terminals of the four groups of main circuits are connected with the wire holes (13) of the second connection line row (3) respectively, so that the line-in terminals of the first main circuit (9), the second main circuit (10), the third main circuit (11) and the fourth main circuit (12) are connected in series; the line-out terminals of the first main circuit (9) and the second main circuit (10) are connected with the wire holes (13) of one of the first connection line rows (2), so that the line-out terminals of the first main circuit (9) and the second main circuit (10) are connected in parallel; the line-out terminals of the third main circuit (11) and the fourth main circuit (12) are connected with the wire holes (13) of the other first connection line row (2), so that the line-out terminals of the third main circuit (11) and the fourth main circuit (12) are connected in parallel, so that the four groups of main circuits form one group of main circuits controlled by the line-in end (5) and the line-out end (6); the relay body (1) is further provided with a control circuit line-in end (7) and a control circuit line-out end (8).

2. A power type relay according to claim 1, characterized in that: The non-wire hole surfaces of the first connection line row (2) and the second connection line row (3) are subjected to insulation coating treatment.

3. A power type relay according to claim 1 or 2, characterised in that: The relay body (1) is provided with a protective cover (4) on the outside.

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